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首页> 外文期刊>Journal of Applied Polymer Science >Thermal and fire behavior of isophorone diisocyanate based polyurethane foams containing conventional flame retardants
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Thermal and fire behavior of isophorone diisocyanate based polyurethane foams containing conventional flame retardants

机译：异佛酮二异氰酸酯的热和火灾行为含有常规阻燃剂的聚氨酯泡沫

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摘要

This work reports on the fire behavior of isophorone diisocyanate-based polyurethane foams containing different conventional flame retardants (FRs) such as melamine, ammonium polyphosphate, aluminum hydroxide, expandable graphite, and their combinations. The foams were obtained in a laboratory scale and characterized in terms of their morphology, density, thermal stability, and fire behavior. According to atomic force microscopy, the incorporation of FRs decreased the phase separated domain size. The cellular structure of the foams was examined qualitatively by scanning electron microscopy while the quantitative analysis of the surrounding skin was performed by optical microscopy and Image J. The FR containing foams showed more and smaller cells. The thermogravimetric analysis showed that the FRs had no influence in the initial degradation temperature of the foams. However, the obtained residue values were higher than the theoretical ones, indicating that there was some type of interaction between the FRs and the foams. The fire behavior of polyurethane foams was studied by the cone calorimeter and the data showed that the introduction of expandable graphite and combinations of ammonium polyphosphate/melamine to the reference foam gave rise to a significant reduction in the total heat release. (C) 2017 Wiley Periodicals,
机译：该工作报告了含有不同常规阻燃剂（FRS）的异佛酮二异氰酸酯的聚氨酯泡沫的火灾行为，例如三聚氰胺，多磷酸铵，氢氧化铝，可膨胀石墨及其组合。在实验室规模中获得泡沫，并以它们的形态，密度，热稳定性和火灾行为为特征。根据原子力显微镜，FRS的掺入降低了相分离的结构域尺寸。通过扫描电子显微镜定性检查泡沫的细胞结构，同时通过光学显微镜和图像J进行周围皮肤的定量分析。含有泡沫的FR含有较小的细胞。热重分析显示FRS对泡沫的初始降解温度没有影响。然而，所获得的残留物值高于理论值，表明FRS和泡沫之间存在某种类型的相互作用。通过锥形量热表研究了聚氨酯泡沫的火灾行为，数据显示引入可扩张石墨和多磷酸三聚氰胺与参考泡沫的组合产生了总热释放的显着降低。 （c）2017年瓦利期刊，

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